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Delta Peak Sensitivity (for NiCd/NiMH batteries)
When the charger has been set to charge NiCd or NiMH chemistry/type batteries you can also set the
delta peak sensitivity value. This is the difference in voltage when the NiCd/NiMH battery reaches
peak voltage/fully charged voltage and is used to complete/end charging of NiCd/NiMH batteries
accordingly.
Generally speaking a higher delta peak sensitivity value will result in more charge or even potential
over-charge, however, in many cases a slight amount of over-charge and the resulting warming of the
cells/battery is desired to ensure the highest possible performance. Slightly warm cells/batteries
(approximately 5-15° Fahrenheit above ambient) are also a good indication that they are fully
charged, however, it is recommended to use the lowest delta peak sensitivity value that allows the
cells/battery to be fully charged and to not stop charging prematurely (typically referred to as ‘false
peaking’).
NiCd cells/batteries typically require a higher delta peak sensitivity value (~10-20mV per cell) to reach
full charge while NiMH batteries require a lower value (~1-10mV per cell). However, in the case of
either chemistry the actual value that works best will depend on many factors including the capacity,
condition and internal resistance (IR) of the cells/battery, IR of the charge leads/connectors, charge
current rate, ambient temperature and more. As a result it is always suggested to start with a lower
value and to increase the value accordingly as needed to achieve slight warming of the cells after the
charge process had been completed/ended.
To adjust the delta peak sensitivity value, while on the Charge Mode screen simply press the ENTER
button six times. The value will begin to flash and you can use the +/– buttons to increase or
decrease the value accordingly. After setting the value per your preference you can press the ENTER
button to select the other adjustable values, or wait approximately 5 seconds until the value stops
flashing to begin the charge process or to scroll through the other modes.
Charging the Battery
After setting the correct battery chemistry type, cell count, capacity and current, and connecting the
battery to the charger properly, you are ready to begin charging. To begin charging simply press and
HOLD the ENTER button for a few seconds (please also note that during charging you can press and
hold the ENTER button to end the charge process).
If the battery is connected properly and the charger confirms that all other parameters are correct,
charging will begin automatically.
Charging LiPo/LiIon/LiFe (A123) Batteries
When charging LiPo/LiIon/LiFe batteries, if the voltage of any cell (when balancing is ON) or all cells
are too low (below ~3.3V) the charger may charge at a rate lower than the charge current rate set
before the charge process began and until the voltage is considered safe/high enough to charge the
battery normally. Or, if the voltages of all cells are OK the charger will increase the current until it
reaches the appropriate charge current rate. And in either case charging will be in the Constant
Current phase, as indicated by the ‘CC’ located in the middle of the upper line on the screen, until the
cells reach approximately 4.20V.
From there the charger will check the battery
while displaying the following screen:
